Steering mechanism for road-graders



R. A. HAWLEY. STEERING MECHANISM FOR ROAD GRADERS.

APPLICATION FILED APR-19nl915- RE'NEWED APfi|29|19l9 1,308,847. PatentedJuly 8, 1919.

3 SHEETS-SHEET I.

WITNESS INVENTOR R. A. HAWLEY.

STEERING MECHANISM FOR ROAD GRADERS. APPLICATION man APR. :9. 1915.RENEWED APR-29,1919.

.1 -,308;847 Patented July 8,1919, 1

3 SHEETS-SHEET 2.

7 FE v l l i l l H ll lllllllllll IIIHIIH WITNESS. INVENTOR R..H.HczwZeR. A. HAWLEY.

STEERING MECHANISM FOR ROAD GRAD'ERS.

APPLICATION FILED APR.19.1915.

RENEWED APR. 29, 1919.

Patented July 8, 1919.

3 SHEETSSHEET 3.

% Q E T 1 WITNESS: @634 A TTOR/VEY UNITED STATES PATENT oFFIoE." I

ROYAL A. HAWLEY, or GRAHAM, TEXAS, ASSIGNOR crown-THIRD T0. J. DRIVERAND ONE-THIRD TO JOHN RUBRNKOENIG; BOTH 0F GRAHAM, TEXAS. I

-sTEER1 e micmmrsm roR ROAD-G-RADERS.

Application filed April 19, 1915, Serial No. 22,331.

useful Improvements in Steering Mechanism for Road-Graders, of which thefollowing is v a specification.

My invention has relation to a steering mechanism for road graders andin suchconnection it relates more particularly -to the arrangement andconstruction of a steering mechanism peculiarly adapted for use with aroad grader described in a companion application for patent filed by meunder even date' herewith and under Serial No. 22,332.

In said application for Patent No. 22,332 I have described and-claimed aroad grader wherein the body of the machine which supports the'scrap-ingor grading blade is adj ustable laterally and vertically with respect tothe rear axle and also circularly or plvotally with respect to thelongitudinal axis of the grader and wherein the blade is supported toturn in circular'be-arings, supported by said body. In my presentapplication there is illustrated and described a simple and efficientsteering mechanism 'e's-' pecially adapted for use in such a roadgrader.

The nature and scope of my invention will be more fully understood fromthe fol. lowing description taken in connection with the accompanyingdrawings forming part hereof, in which,

Figure 1, is a side elevational View of the rear portion of a roadscraper with steering mechanism embodying main features of my invention.

Fig. 2, is a rear end elevational view of the same, and Fig. 3, is a topor plan view thereof. Referring to the drawings. 1, represents the bodyof the machine and 2 the scraper ing in the annular bearing 3. The rearend of body 1 is supported on a circular bearing 4: which is carried bythe rear axle 5. The construction and arrangement of all these parts aremore particularly described in my Specification of Iietters Patent.

Patented Jul s, 1919.

Renewed April 29, 1919. Serial No. 293,581. I

gglgzpg-nion application for Patent Serial No.

For the sake of clearness certain portions of the construction of therear bearing have .55 been eliminated in the drawings of the presentapplication. The rear axle 5 is boxshaped and hollow with the upper andlower slots 6. This or a similar construction of axle 5 is prescribed byreason of the fact that it is desirable to support the rear bearing 4 sothat it may slide or move laterally on the axle 5, as clearly explainedin said application No. 22,332. I

The top and bottom of the axle 5 are exten'dedat the extreme ends toform at each end a frame or bracket 7 in which a Vertically arrangedshaft or pintle 8 is pivotally supported. From the shaft or pintle 8projects radially a stub shaft or axle 9 oneach of which a wheel 10of-the machine turns. From the periphery of each pintle 8 also projectsa shoitarm 11 and the two arms 11 are connected by a rod 12 preferablyextend ing parallel with the rear face of the'axle 5.

From preferably the top of axle 5 and to the rear of the same, extends aplatform 13 on which is mounted, preferably at the middle portion, asector gear 14. ,A hand lever 15 connected at its lower end to rod 12'80 described is simple and is so constructed and arranged that it willnot interfere with the proper adjustment of the rear bearing for thebody either-in vertical or lateral planes or in circular planes ifrequired.

Having thus described the nature and objects of my invention what Iclaim as new and desire to secure by LettersPatent, is, In a steeringmechanism for road graders, a box-like hollow axle, a bracket formed ateach end by projecting the top and bottom faces of said axle, avertically arranged oted intermediate of its ends to said ar and havingits lower end cond lever swinging 10; portin a vertical plane. eof Ihave signed my pivotally supported in each bracket, axle projectingradially from each an arm carried by each pintle and a ms, combined witha the top of the hollow locking pawl and a sector (1 platform, said handnected with said rod, sai about its pivotal sup In testimony wher nameto this specific ROYAL A. HAWLEY,

.rod connecting the ar platform support axle, a hand lever, gear mountedupon sai

